KR101340672B1 - A core assembly of mold and the casting wooden pattern using the core assembly - Google Patents

Abstract

The present invention relates to a core assembly for guiding a casting mold to a normal position and a wooden model using the core assembly, and provides a core assembly for guiding a casting mold to a normal position which comprises: a male core that is fixated on the surface of a mold and which has a fitting projection convexly protruding from the surface of the mold; a female core that is fixated on the surface of the mold and which has a concavely fitting groove toward the inside thereof; a male core support which has a support groove formed thereon for the projection of the male core to be inserted into the support groove by being integrated and combined with the upper part of the base plate of the casting mold; a female core support which has a support projection formed thereon and which is inserted into the fitting groove by being integrated and combined with the upper part of the base plate of the casting mold. The mold according to the present invention is manufactured while the male and female cores are supported by the male and female core supports when the core is made by using molding sand after the male and female core supports are integrally fixated on the upper part of the base plate of the casting wooden mold; simply made by using the male and female cores only when a mold is made by using a casting mold without a base plate; and therefore, has the positions of the male and female cores always maintained constantly for mass-producing cores while the even quality of the cores are maintained and the defect rate of the cores is decreased.

Description

A core assembly of mold and the casting wooden pattern using the core assembly}

According to the present invention, since the core position is always kept constant during the production of molds using wood molds, there is no fear of deviations, and thus, molds of uniform shapes can be manufactured in large quantities, thereby reducing the defective rate of casting products. It relates to a guide core assembly and a die using the same.

In general, casting is a metal processing technique in which molten metal is poured into a mold such as a sand mold or a mold and solidified to produce casting products of various forms.

At this time, the material used in the manufacture of the mold is called a casting sand, also known as casting or casting.

Such casting is widely used in the production of products today, and as a main sand casting, quartz, feldspar, mica, clay, etc. are used as main components, and iron oxide or calcite is included as a small amount as impurities.

In this case, when selecting sand casting sand as a factor that determines the quality of the casting, several conditions for installation should be considered. Therefore, it is easy to manufacture a mold, and it must be a mold without defect of hot molten metal. In order to satisfy these conditions, the strength, hardness, air permeability, caking force, thermal expansion and moldability, etc. should be adjusted.

On the other hand, casting (casting) can be mass-produced in a relatively simple equipment than forging, sheet metal, welding, and the like, and is easy to process.

In order to obtain such a cast product, first, a die having a shape of a cast product must be provided. Such wooden molds are used in the form of semi-permanent wooden molds that are processed by casting into wood, such as wood, or in the form of disposable products.

Meanwhile, a plurality of molds are manufactured using a wooden mold. In this case, when manufacturing upper and lower molds for casting, cores for forming positions at which they are coupled after production of the upper and lower molds are manufactured. Dowwell is used, which lacks function.

Publication No. 10-2010-0107271 has been proposed as a prior art related to such a Dowwell. The present invention relates to a casting dowel manufacturing method and a dowel manufactured by the method. A casting dowel manufacturing method includes a flange and an image having an expanded diameter in a cup-shaped body and an opening of the body. In the upper and lower dowwells having through-holes formed in the flange portion for mounting to the lower mold, respectively, the upper and lower dowwells are mounted with a disc-shaped working plate material on the jig, and the Dowwell body diameter of each desired size. A primary pressing step of manufacturing the primary pre-work by pressing in a press to have a body having a wider diameter and a shorter length and a flange portion bent and extended in the body; A second pressing step of pressing the first preliminary workpiece processed in the first pressing step into a second preliminary workpiece having the same dowel body diameter, length, and flange size of each desired size; Finishing step of completing the desired upper, lower dowwell by drilling a plurality of holes in the flange portion of the secondary pre-work worked in the secondary pressing step; .

However, these dowels are fixed integrally to the surface of the die. In case of repeated use, the dowel must be replaced after a certain number of times due to surface wear. Reducing the failure rate of cast products can be lowered, requiring periodic replacement of Dowwell. In this case, the dowel is screwed to the surface of the die, so the screw hole of the wood material is broken and loosened in the process of releasing the screw and replacing it with a new dowwell. Since the well is fixed, this also causes a problem that a deviation occurs.

Therefore, to solve such a conventional problem, the present invention can always maintain a constant position of the core at the time of manufacturing the mold using a wooden mold, there is no need to move the position of the dowel in the wooden mold, there is a fear of occurrence of deviation It is an object of the present invention to provide a core assembly for guiding the position of the casting mold, which can produce a large amount of the mold of a uniform shape, and a wooden mold using the same.

In addition, the present invention is a cast core is not made of a molding sand can be reliably assembling a plurality of molds can be lowered the failure rate in the production of casting products in the future position of the casting casting mold core assembly using the same and a wooden mold using the same The purpose is to provide.

According to an aspect of the present invention,

The male core is fixed to the surface of the mold is formed convex protruding projections, the female core is fixed to the surface of the mold and formed in the concave fitting groove inwardly, and integrally coupled to the upper base plate of the casting die A male core supporter having a support groove into which the fitting protrusion of the male core is inserted, and a female core support having a support protrusion inserted into the fitting groove of the female core by being integrally coupled to an upper portion of the casting base plate. Provided is a core assembly for guide positioning of a casting mold, characterized in that consisting of a sphere.

In this case, the male core has a fitting protrusion formed in the first half of the first body, a first flange portion is formed at the rear edge of the first body, and a first recess is formed at the center of the rear end of the first body. do.

The female core has a cup-shaped fitting groove formed at the first half of the second body, and a second flange portion is formed at a rear edge of the second body, and a second at the rear end center of the second body. A recess is formed.

In addition, the male core support is a support groove into which the insertion protrusion of the male core can be inserted into the third body, and the first contact portion is formed to be in close contact with the upper surface of the base plate along the front edge of the third body. In the first contact portion, a plurality of screw holes are formed so that the screw penetrates and the male core supporter is integrally fixed to the upper part of the base plate of the casting die.

And the support for the female core is a support protrusion which can be inserted into the fitting groove of the female core is formed in the fourth body, the second contact portion is formed in close contact with the upper surface of the base plate along the front edge of the fourth body, A plurality of screw holes are formed in the second close contact portion, and the screw penetrates to fix the female core supporter integrally to the upper part of the base plate of the casting die.

In addition, the male core is characterized in that the fitting projection is formed in the first half of the first body, the rear end of the first body is provided with a first extension portion and the first flange portion is formed at the end of the first extension portion.

The female core has a cup-shaped fitting groove formed in the first body of the second body, and a second extension part is provided at the rear end of the second body, and a second flange part is formed at the end of the second extension part. It is characterized by being formed.

In addition, the mold is produced by filling the casting sand in the mold, the mold is made of a rectangular frame shape of the upper and lower portions, the inside of the mold is installed a metal mesh for supporting the mold, the handle is outside the mold Characterized in that it is provided.

The present invention also provides

In the casting wooden mold is provided with an integrally formed on the upper surface of the base plate, the upper surface of the base plate is formed with a support groove into which the insertion protrusion of the male core is inserted is formed with a fitting protrusion protruding convexly to the surface of the mold The male wooden support is to be cast and the female wooden support, characterized in that the support for the female core is formed integrally fixed to the support groove is inserted into the insertion groove of the female core is formed in the recess recess inwardly from the surface of the mold to provide.

The present invention also provides

Core for guiding the casting mold, characterized in that the male core is fixed to the surface of the mold is formed with a convex projecting projection is formed, and the female core is fixed to the surface of the mold, the inner concave fitting groove is formed It also provides an assembly.

At this time, the male core has a first side protrusion formed on the outer circumferential surface of the polygonal first body, the first flange portion is formed on the rear end of the first body; The female core is characterized in that the second side protrusion is formed on the outer peripheral surface of the polygonal second body, the second flange portion is formed on the rear end of the second body.

And, the mold is separated into a plurality of molds, characterized in that the release layer is further formed on the bonding surface of the molds.

According to the present invention, a male core support and a female core support are integrally fixed to an upper part of a cast wooden base plate, and a male core and a female core fixed to a mold when a mold is manufactured using a molding sand support for a male core. The mold can be manufactured in the state supported by the sphere and the support for the female core, so that the position of the male core and the female core is always kept constant, so that even if the mold is produced in large quantities, uniform quality can be obtained. The defective rate of casting products can be lowered.

In addition, the core assembly for guiding the position of the casting mold according to the present invention is directly fixed to the male core and the female core to the mold when the mold is manufactured using the molding sand, so that the production of the mold using the mold for the casting without the base plate is simple. Can be used.

1 is a perspective view showing an example of a wooden die using the core assembly for guiding the position of the casting mold according to the present invention.
Figure 2 is an exploded perspective view showing an example of the die (top die) using the core assembly for positioning the guide of the casting mold according to the present invention.
3 is an exploded perspective view showing an example of a wooden die (lower wooden die) using the core assembly for positioning the guide of the casting mold according to the present invention.
4 and 5 are diagrams for explaining the manufacturing example of the upper and lower molds using the casting die according to the present invention.
6 and 7 are diagrams for explaining the close contact example of the upper and lower molds shown in FIGS.
FIG. 8 is a view illustrating a casting example of a casting product using the upper and lower molds illustrated in FIGS. 6 and 7.
9 is a view showing for explaining another example of the core assembly for positioning the guide of the casting mold according to the present invention.
10 is a view illustrating another embodiment of the core assembly for guiding the position of the casting mold according to the present invention.
FIG. 11 is a view illustrating an application example of the core assembly for guiding the position of the casting mold shown in FIG. 10.
12 is a view illustrating another application example of the core assembly for guiding the position of the casting mold shown in FIG. 10.

Hereinafter, the features of the present invention will be understood by the embodiments described in detail with reference to the accompanying drawings.

While the present invention has been described in connection with certain embodiments, it is obvious that the invention is not limited to the disclosed embodiments, but, on the contrary, is intended to cover various modifications and equivalent arrangements included within the spirit and scope of the invention. It is to be understood, however, that the invention is not intended to be limited to the particular forms disclosed, but on the contrary, is intended to cover all modifications, equivalents, and alternatives falling within the spirit and scope of the invention.

In the drawings, the same reference numerals are used for the same reference numerals, and in particular, the numerals of the tens and the digits of the digits, the digits of the tens, the digits of the digits and the alphabets are the same, Members referred to by reference numerals can be identified as members corresponding to these standards.

In addition, in the drawings, the components are exaggerated in size (or thickness), in size (or thickness), in size (or thickness), or in a simplified form or simplified in view of convenience of understanding. It should not be.

The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. Singular expressions include plural expressions unless the context clearly indicates otherwise. In the present application, the term " comprising " or " consisting " or the like is used to specify that a feature, a number, a step, an operation, an element, a component, But do not preclude the presence or addition of one or more other features, integers, steps, operations, elements, parts, or combinations thereof.

Unless defined otherwise, all terms used herein, including technical or scientific terms, have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. Terms such as those defined in commonly used dictionaries are to be interpreted as having a meaning consistent with the contextual meaning of the related art and are to be interpreted as either ideal or overly formal in the sense of the present application Do not.

According to Figures 1 to 3, the core assembly 100 for guiding the position of the casting mold according to the present invention is to maintain a constant position of the core at the time of the production of the mold using a wooden mold, casting wooden ( Applies to 1).

At this time, the casting die 1 is provided integrally with the die 20 in the upper surface of the base plate (10).

At this time, the base plate 10 may be made of a material such as metal or wood, the wooden part 20 may be made of a material such as wood, mortar, styrofoam.

Meanwhile, the casting die 1 is used to manufacture the mold 200 as shown in FIG. 6, and the mold is divided into at least an upper mold 210 and a lower mold 220. In this case, when the upper mold 210 and the lower mold 220 are assembled, a male core 110 and a female core 120 are provided to be assembled at a predetermined position, and the male core 110 is provided. The upper mold 210 and the lower mold 220 are assembled in the correct position by being inserted into the female core 120.

As described above, the core guide 100 for guiding the casting position of the casting mold according to the present invention to enable the in-situ assembly of the mold includes a fitting protrusion 112 protruding convexly to the surface of the mold 200. The male core 110, the female core 120 having a recessed groove 122 inwardly formed on the surface of the mold 200, and integrally coupled to the upper portion of the base plate 10 of the casting die 1. The male core support 130 is formed with a support groove 132 into which the fitting protrusion 112 of the male core 110 is inserted, and integrally coupled to an upper portion of the base plate 10 of the casting die 1. It is made of a support for the female core 140 is formed a support protrusion 142 is inserted into the fitting groove 122 of the female core (120).

That is, the male core 110 and the female core 120 are integrally fixed to the surface of the mold during the production of the mold 200 using the molding sand, and the male core support 130 and the female core support 140 ) Is integrally coupled to the casting die (1).

At this time, the male core 110 and the female core 120 constituting the core assembly, the male core support 130 and the female core support 140 are all made of a metal material, casting, forging, press It can be produced in various forms such as processing.

Hereinafter, the structure of each part of the core assembly for position guide of the casting mold which concerns on this invention is demonstrated concretely.

First, the male core 110 is formed with a fitting protrusion 112 in the first half of the first body 111, the first flange 113 is formed integrally at the rear end. At this time, the stepped surface 111a is formed at the front end of the first body 111 and the fitting protrusion 112 is integrally formed at the center of the stepped surface 111a.

At this time, the diameter of the first body 111 of the male core 110 becomes narrower from the rear end to the front end, and the fitting protrusion 112 also narrows from the rear end to the front end. That is, the first body 111 and the fitting protrusion 112 is inclined so that the diameter becomes narrower from the rear end to the front end, and in this case, the inclination angle of the first body 111 and the fitting protrusion 112 is formed within 3 to 5 °. It is preferable to.

In addition, a first flange portion 113 is formed at the rear edge of the first body 111. The first flange portion 113 is to prevent the departure from the mold when the mold 200 is manufactured later by using the molding sand, one of which wraps along the rear edge of the first body 111 as a whole Although the first flange portion 113 may be formed, it is preferable that at least two first flange portions 113 are formed to protrude horizontally.

A first recess 114 is formed at the center of the rear end of the first body 111. Such a first recess 114 can increase the contact area with the foundry sand to be firmly fixed to the mold 200, and can also reduce the raw material used to manufacture the male core 110.

On the other hand, the female core 120 is formed in the first body of the second body 121, the fitting groove 122 is formed in the cup shape in the second body 121, the second edge on the rear edge of the second body 121 The flange portion 123 is formed. The second flange 123 as described above is intended to prevent departure from the mold when the mold 200 is manufactured by using the foundry sand. The second flange 123 is generally formed along the rear edge of the second body 121. Although it is possible to form the branch portion 123, it is preferable that at least two second flange portions 123 are formed to protrude horizontally.

At this time, the second body 121 and the fitting groove 122 is inclined so as to expand in diameter from the rear end to the front end, in which case the inclination angle of the second body 121 and the fitting groove 122 is within 3 ~ 5 °. It is preferable to form.

A second recess 124 is formed at the center of the rear end of the second body 121. The second recess 124 may increase the contact area with the foundry sand and thereby firmly fix the mold 200 to the mold 200, and reduce raw materials used to manufacture the female core 120.

The shape of the fitting protrusion 112 of the male core 110 is formed in the same shape as the fitting groove 122, so that the fitting protrusion of the male core 110 fixed to the upper mold 210 when the mold is assembled. 112 is inserted into the fitting groove 122 of the female core 120 fixed to the lower mold 220, the lower mold 220 in the fitting groove 122 of the female core 120 fixed to the upper mold 210. Insertion protrusion 112 of the male core 110 is fixed to the () is inserted into the mold can be assembled while adjusting the correct position.

And the male core support 130 is to be integrally coupled to the upper base plate 10 of the casting die (1), the support groove 132 into which the insertion protrusion 112 of the male core 110 can be inserted. ) Is formed on the third body 131, the first contact portion 133 is formed to be in close contact with the upper surface of the base plate 10 along the front edge of the third body 131.

At this time, the support groove 132 of the third body 131 is inclined so as to expand in diameter from the rear end to the front end, in which case the inclination angle of the support groove 132 is preferably formed within 3 ~ 5 °.

In addition, a plurality of screw holes 133a are formed in the first close contact portion 133 so that the screw 134 penetrates to integrate the male core support 130 into the upper portion of the base plate 10 of the casting die 1. Can be fixed with

In addition, the support for the female core 140 is integrally coupled to the upper portion of the base plate 10 of the cast wooden die 1, the support protrusion (insertable into the fitting groove 122 of the female core 120) 142 is formed on the fourth body 141, the second contact portion 143 is formed in close contact with the upper surface of the base plate 10 along the front edge of the fourth body (141).

At this time, the support protrusion 142 of the fourth body 141 is inclined so as to decrease in diameter from the rear end to the front end, in which case the inclination angle of the support groove 142 is preferably formed within 3 ~ 5 °.

In addition, a plurality of screw holes 143a are formed in the second close contact portion 143 to allow the screws 144 to pass through to integrate the female core supporter 140 into the upper portion of the base plate 10 of the casting die 1. Can be fixed with

Hereinafter, with reference to FIGS. 4 and 5 will be described a casting die for which the core assembly for positioning guide of the casting mold according to the present invention and its use example.

First, the casting die 1 has a structure in which the die 20 is integrally provided on the upper surface of the base plate 10, and the male core support 130 and the arm are formed on the base plate 10. The support for the core 140 is integrally fixed using a screw or the like.

Thereafter, the male protrusion 110 of the male core 110 is inserted into the support groove 132 of the male core support 130 to support the male core 110 to the male core support 130. The support protrusion 142 of the support for the core 140 is inserted into the fitting groove 122 of the female core 120 to support the female core 120.

In this case, the casting die 1 may be manufactured by dividing the lower mold and the upper mold, in which case the position of the male core 110 and the female core 120 supported by the lower mold is the lower mold. Male core support 130 and female core support 140 for supporting the female core 120 and the male core 110 to correspond to the position of the female core 120 and the male core 110 supported on the wooden dies 140 ) On the base plate of the wooden box.

The manufacture of the mold using the casting wooden mold manufactured by the above various methods, and the casting example of the casting product using the mold are demonstrated.

As shown in FIG. 4, the upper mold 210 is manufactured by filling the molding sand 202 in the upper mold 201, and the molding sand 204 is filled in the lower mold 203 as shown in FIG. 5. 220). At this time, the upper mold 210 and the lower mold 220 can be produced in any order.

At this time, the upper mold 201 and the lower mold 203 is formed in a rectangular frame shape of the upper and lower portions, the metal mesh 201a, 203a for supporting the upper mold and the lower mold integrally is installed molding sand (202,204) ), The metal mesh 201a, 203a supports the molding sand 202, 204 so that the upper mold 210 and the lower mold 220 are not separated in the upper mold 201 and the lower mold 203. Is fixed.

Meanwhile, the upper mold 210 and the lower mold 220 are provided with handles 201b and 203b on the outside of the upper mold 201 and the lower mold 203 so that the upper mold 201 and the lower mold 220 are easily transported. Lifting the lower mold 203 can be separated from the casting die (1).

The upper mold 210 and the lower mold 220 manufactured as described above are formed with spaces 212 and 222 into which molten metal is introduced. In this case, an injection hole 214 for injecting the molten metal is formed in the upper mold 210. Then, the casting die 1 used to form the spaces 212 and 222 is separated.

When the casting die 1 is removed, the upper mold 210 and the lower mold 220 are in the state in which the female core 120 and the male core 110 are integrally fixed, and the casting die 1 The male core 120 and the male core 110 are separated from the male core support 130 and the female core support 140.

As such, the casting die 1 used to manufacture the upper mold 210 and the lower mold 220 may be used to manufacture another upper mold 210 and the lower mold 220 after separation, and in this case, separate A plurality of upper molds 210 and lower molds 220 are permanently semi-permanently supported with the female core 120 and the male core 110 supported on the male core support 130 and the female core support 140. Can be used to make

Meanwhile, the upper mold 210 and the lower mold 220 manufactured as described above are in close contact with each other to form the space parts 212 and 222 in the same shape as the casting die 1 as shown in FIG. 8. In this case, the upper mold 210 and the lower mold 220 are brought into close contact by lifting the handles 201b and 203b of the upper mold 201 and the lower mold 203, and the molten metal 300 is attached to the upper mold 210. Through the injection hole 214 of the filling the spaces (212, 222) to fill and cool to solidify, separating the upper mold 210 and the lower mold 220 can be obtained a finished casting product (301).

FIG. 9 is a view illustrating a core assembly for guiding a position of a casting mold according to another embodiment of the present invention.

According to this, after the first body 111 is provided on the rear end of the first body 111 of the male core 110, the first extension part 115 is provided, and then the first plan is formed at the end of the first extension part 115. A branch 113 is formed, and the second extension portion 125 is provided after the second extension portion 125 is provided on the rear end of the second body 121 of the female core 120 without directly forming the second flange portion. A second flange portion 123 is formed at the end of the second flange portion 123.

In this case, the first and second extension parts 115 and 125 may be integrally formed at the rear ends of the first body 111 of the male core 110 and the second body 121 of the female core 120. After forming the screw holes 111a and 121a at the rear ends of the first body 111 and the second body 121 of the female core 120, the threads (for the first and second extension parts 115 and 125) are formed. 115a, 125a) can be formed and screwed together. By forming the first and second extension parts 115 and 125 as described above, the male core 110 and the female core 120 may be more firmly fixed to the upper mold 210 and the lower mold 220.

10 is a view illustrating a core assembly for guiding a position of a casting mold according to another embodiment of the present invention.

Accordingly, the first side protrusion 119 is formed on the outer circumferential surface of the first body 111 of the male core 110 in the longitudinal direction of the first body 111, and the first flange portion is formed at the rear end of the first body 111. 113 is formed. In addition, a second side protrusion 129 is formed on the outer circumferential surface of the second body 121 of the female core 120 in the longitudinal direction of the first body 121, and a second flange portion is formed at the rear end of the second body 121. 123 is formed.

At this time, the first body 111 of the male core 110 and the second body 121 of the female core 120 is formed in a polygonal shape such as triangular, square, hexagonal.

As such, the first body 111 of the male core 110 and the second body 121 of the female core 120 have a polygonal shape, and the first body 111 and the female of the male core 110 are formed in a polygonal shape. The male core 110 and the female core 120 are formed on the upper mold 210 and the lower mold 220 by forming the first and second side protrusions 119 and 129 on the outer surface of the second body 121 of the core 120. ), The male core 110 and the female core 120 can be prevented from being wasteful and can be more firmly fixed.

In addition, Figure 11 is a view showing for explaining an application example of the core guide for the position guide of the casting mold according to the present invention.

According to this, when the casting die 1 does not have the base plate 10, the core assembly 100 for guiding the position of the casting mold is directly mounted during the manufacture of the upper mold 210 and the lower mold 220. do.

That is, as shown in FIG. 11, the lower mold 220 is manufactured by filling the molding sand 204 with the lower mold 203. At this time, after filling the casting sand to the appropriate height as in (a) and position the male core 110 and the female core 120, and as shown in (b) the upper portion of the male core 110 and female core 120 The other female core 120 and the male core 110 are paired with each other. After filling the molding sand to the height of the lower mold 220 and performing compaction, a release powder such as resin is applied to the surface of the lower mold 220 as in (c) to form a release layer 209. As such, by forming the release layer 209 on the joint surfaces of the upper and lower molds 210 and 220, separation of the upper and lower molds 210 and 220 is facilitated.

And as shown in (d), the upper mold 201 is further installed, and the molding sand 204 is filled and compacted to the height of the upper mold 210, and as shown in (e), the upper mold 210 and the lower mold ( Demolding 220 to separate the casting die (1).

Thereafter, as shown in (f), the upper mold 210 and the lower mold 220 are brought into close contact with each other to form the spaces 212 and 222 in the same shape as the casting die 1, and the melted as in (g). The metal 300 is injected through the inlet 214 of the upper mold 210 to fill the spaces 212 and 222 and to cool and solidify. The separated mold is separated from the upper mold 210 and the lower mold 220. Product 301 can be obtained.

12 is a view illustrating another application example of the core assembly for guiding the position of the casting mold according to the present invention, in which case the casting die 1 is formed in a complicated shape, 1) may be made into partial wood molds (1a, 1b) and can be used to mold three or more stages (210, 220, 230). That is, the first stage mold, which is the lower mold 210, is manufactured on the lower mold 203 as in (a) and (b) by using the molding sand, the male core 110, and the female core 120, and the resin is disposed on the upper portion thereof. A release powder such as is applied to the surface of the lower mold 220 to form a release layer 209a.

Then, a two-stage mold, which is an intermediate mold 230, is manufactured on the intermediate mold 205 as in (c) and (d) by using the molding sand, the male core 110, and the female core 120. The same release powder is applied to the surface of the intermediate mold 220 to form the release layer 209b.

And after installing the upper mold 201 as in (e) and filling the molding sand to the height of the upper mold 210, and compacting, as in (f) the upper mold 210 and the lower mold 220 and Demoulding the intermediate mold 230 to separate the casting die (1). In this case, the upper mold 210, the middle mold 230, and the lower mold 220 are sequentially lifted by lifting the handles 201b, 203b, and 205b of the upper mold 201, the lower mold 203, and the intermediate mold 205. To close.

Thereafter, as shown in (g), the upper mold 210 and the lower mold 220 and the middle mold 230 are brought into close contact with each other to form the spaces 212, 222 and 232 in the same shape as the casting die 1. 300 is injected through the inlet 214 of the upper mold 210 to fill and cool the spaces 212 and 222 to solidify, and separate the upper mold 210, the middle mold 230, and the lower mold 220. The finished casting product 301 can be obtained.

1 to 12 is a cast die and mold and casting products shown in order to illustrate an example, the in-position adjustment core assembly and casting die and mold and casting having various shapes or shapes Products may be manufactured in various ways, and they fall within the scope of the present invention regardless of their shape or shape.

1: casting die 10: base plate
20: die 100: core assembly
110: male core 120: female core
130: support for male core 140: support for female core
210: upper mold 220: lower mold
301: casting products

Claims (15)

The male core 110 is fixed to the surface of the mold 200 is formed convex protrusions 112 are formed, and the arm is fixed to the surface of the mold 200, the recess grooves 122 are formed in the inner concave Core male 120 is integrally coupled to the upper base plate 10 of the casting die 1 for the male core is formed with a support groove 132 into which the fitting protrusion 112 of the male core 110 is inserted A female core which is integrally coupled to the support 130 and the base plate 10 of the casting die 1 is inserted into the fitting groove 122 of the female core 120 is formed of a female core It is made of a support 140,
The male core 110 has a fitting protrusion 112 formed in the first half of the first body 111, and a first flange portion 113 is formed at a rear edge of the first body 111. Core assembly for in-position guidance of casting molds.
The method of claim 1,
Core assembly for guiding the position of the casting mold, characterized in that the first groove portion 114 is formed in the center of the rear end of the first body (111).
The method of claim 1,
The female core 120 has a fitting groove 122 having a cup shape in the second body 121 is formed in the first half of the second body 121, a second plan on the rear edge of the second body 121. Core assembly for guiding position of the casting mold, characterized in that the branch 123 is formed.
The method of claim 3, wherein
Core assembly for guiding the position of the casting mold, characterized in that the second groove 124 is formed in the center of the rear end of the second body (121).
The method of claim 1,
The male core support 130 has a support groove 132 into which the fitting protrusion 112 of the male core 110 can be inserted into the third body 131, and a front edge of the third body 131. A first contact portion 133 is in close contact with the upper surface of the base plate 10 is formed along the plurality of screw holes 133a are formed in the first contact portion 133, the screw 134 penetrates through The core assembly for guiding the position of the casting mold, characterized in that the male core support 130 is fixed integrally to the upper portion of the base plate 10 of the casting die (1).
The method of claim 1,
The female core supporter 140 has a support protrusion 142 that can be inserted into the fitting groove 122 of the female core 120 is formed in the fourth body 141, the front edge of the fourth body 141 A second contact portion 143 is formed to be in close contact with the upper surface of the base plate 10 along the plurality of screw holes 143a are formed in the second contact portion 143 through the screw 144 through The core assembly for guiding the position of the casting mold, characterized in that the female support for the core 140 is fixed integrally on the base plate 10 of the casting die (1).
The male core 110 is fixed to the surface of the mold 200 is formed convex protrusions 112 are formed, and the arm is fixed to the surface of the mold 200, the recess grooves 122 are formed in the inner concave Core male 120 is integrally coupled to the upper base plate 10 of the casting die 1 for the male core is formed with a support groove 132 into which the fitting protrusion 112 of the male core 110 is inserted A female core which is integrally coupled to the support 130 and the base plate 10 of the casting die 1 is inserted into the fitting groove 122 of the female core 120 is formed of a female core It is made of a support 140,
The male core 110 has a fitting protrusion 112 formed in the first half of the first body 111, and a first extension part 115 is provided at a rear end of the first body 111 and the first extension part. Core assembly for guiding the position of the casting mold, characterized in that the first flange portion 113 is formed at the end of the (115).
8. The method of claim 7,
The female core 120 has a cup groove 122 having a cup shape in the second body 121 is formed in the first half of the second body 121, the second extension portion at the rear end of the second body 121. (125) is provided, and the second flange portion 123 is formed in the end of the second flange portion 123, the position guide core assembly for the casting mold, characterized in that formed.
The method of claim 1,
The mold 200 is produced by filling the molding sand into the mold, the mold is made of a rectangular frame shape of the upper and lower openings, the casting mold, characterized in that the metal mesh for supporting the mold is installed inside the mold Positioning core assembly
The method of claim 9,
Core assembly for guiding position of the casting mold, characterized in that the handle is provided on the outside of the mold.
Male core 110 is fixed to the surface of the mold 200 is formed with a convex protrusion 112 is formed, the female core is fixed to the surface of the mold 200 is formed in the concave fitting groove 122 Consisting of 120;
The male core 110 has a first side protrusion 119 formed on the outer circumferential surface of the polygonal first body 111, and a first flange portion 113 formed at the rear end of the first body 111;
The second side protrusion 129 is formed on the outer circumferential surface of the polygonal second body 121 of the female core 120, and the second flange portion 123 is formed at the rear end of the second body 121. Core assembly for in-position guidance of casting molds.
12. The method of claim 11,
The mold 200 is separated into a plurality of molds, but the mold release layer core assembly for guiding the cast, characterized in that the release layer 209 is further formed on the bonding surface of the molds.
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